Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d03de43b92ab450…

MALICIOUS

PDF

71.6 KB Created: 2021-02-14 01:50:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 390f084860540bea49bd7d1fbcb5b011 SHA-1: e2716208d1cac045077a950ba3bd36ce44e272c6 SHA-256: 6d03de43b92ab45009795a1a9cbf73497fbaf03e8c642e051725a6c2e991abe0
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://maypoin.ru/wb?keyword=nfl%20injury%20report%20week%2010%202018 PDF link annotation
    • http://quickstore.pro/hd_camera_for_android_pro_apk_1._5lvcp4.pdfIn PDF document text
    • https://cdn.sqhk.co/pezolaje/cge8cOM/coin_kingdom_free_spins_link.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415951/normal_5fc9a56fb33c2.pdfIn PDF document text
    • https://cdn.sqhk.co/nulegudup/YHW6vZ2/18468574654.pdfIn PDF document text
    • https://cdn.sqhk.co/tiruxugajo/Gihkv6D/heroism_pathfinder_2e.pdfIn PDF document text
    • http://vijoxufomodazug.22web.org/hays_uk_salary_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/fusajovogi/jco5ijf/11691506039.pdfIn PDF document text
    • http://static-get.top/velojx07na.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500667/normal_60141135280d1.pdfIn PDF document text
    • http://nadahul.ru/maplestory_m_night_lord_equipment_guidew3kd3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369659/normal_6022f7a2875d2.pdfIn PDF document text
    • http://lorenbayi.com/25839994586oizcf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://laguvimotu.rf.gd/jobesixubet.pdfIn PDF document text
    • http://mubepagowo.rf.gd/kegikoxorituxebanasij.pdfIn PDF document text
    • http://legofovivaxom.epizy.com/9801944845.pdfIn PDF document text
    • https://s3.amazonaws.com/xeroguru/setbackgroundcolor_android_transparent.pdfIn PDF document text
    • https://s3.amazonaws.com/fonibinaraj/du_bsc_chemistry_syllabus.pdfIn PDF document text
    • https://s3.amazonaws.com/bezorito/11684868619.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000db1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB1C 5332 bytes
SHA-256: 3847b2bed974276b35f2a9932e1d02edfd7befeaaeaabbfe5cd565f23bef6f89
font_01_sfnt_off0000ed84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED84 10668 bytes
SHA-256: 6fff504f1bbeb6183c18c0544ee29b0479347cae8c93108aa29ea46a5ab5a213